TV Guide Heroes & Icons Network Tuesday

While escorting a group of stargazers, Archer discovers that one of his guests is a sinister time-traveling alien intent on tampering with history.

A drug smuggler targets Walker when his business is threatened and Walker suspects that there is a serial rapist where Alex teaches.

Bobby and Reno set their sights on exposing thieves who have kidnapped models who have appeared on adult magazines as well as the publications editor.

A deeply indebted gambler turns himself into Colt and Howie in the hopes that they can get him out of Las Vegas alive.

Nash and Joe help and follow a police custody escapee who seeks bitter revenge when his parents are murdered.

Esteemed country-western singer Merrilee and her daughter move on Walker's ranch in order to receive protection from her crazed ex-husband.

A man who believes that Yuma killed his brother during the war provokes him into a gunfight, and must escape after killing the man's son during the battle.

A Texas Ranger and acting sheriff of the town of Porter, Texas, pursues an assortment of wanted fugitives, including bank robbers, horse thieves and killers.

Wanting to take pictures of a legendary Mexican bandit, a timid photographer recruits Josh to help locate the elusive man since they happen to be friends.

A father fears losing his daughter to a suitor, and Josh is hired by the would-be couple in order to distract the father from their escape to elope.

Cheyenne assumes the identity of a murdered bank robber in an attempt to track down the location of the bank money that was stolen.

After saving an innocent Apache woman, Billy Blue is put on trial after accidentally killing an army lieutenant's son in the brawl.

A retired member of a biker gang who is just out of prison is being pressured to go back to his old life, and MacGyver joins his old gang to stop them.

After retrieving a missing relic, the Team comes across a tribe of natives who confuse Murdock for a god and a group of men try to steal the relic.

Harm decides to volunteer to defend a psychotic Vietnam veteran who is being accused of aiding the suicide of a fellow veteran affairs patient.

Harm is given the difficult task of defending a Marine guard who shot an arrested terrorist on live television, while millions of viewers were watching.

Harm and Mac are put on an investigation when a fighter pilot claims he heard the voice of God tell him not to fire on an attacking Iraqi fighter.

Harm is sent to Washington, D.C., where he is supposed to join a committee compiled to judge the power of a recent, shocking television report.

Mac is arrested and placed on trial for a major felony that could result in long prison terms if convicted, along with her former mentor, Colonel John Farrow.

A former boxer, who lived and trained in a brothel among prostitutes, is found murdered, and the CSIs have a few leads as to what could have killed him.

The death of a female blackjack dealer is linked to several members that belong to a club of UFO believers, a club to which the victim's husband has ties.

A madam refuses to reveal the name of the sadistic client who attempted to murder her; Sara grows increasingly uncomfortable as the investigation proceeds.

While investigating the disappearance of a planet, the Enterprise crew encounters a bizarre character with two personalities.

When a hypnotic new game turns the entire crew of the Enterprise into mindless zombies, it is up to Wesley Crusher to save the ship.

The casualty lists from the war begin to overwhelm Sisko, who has visions of himself in 20th-century Earth where he wrestles with civil rights issues.

After the Voyager crew repairs a robot they found drifting through space, B'Elanna is taken prisoner by similar robots who want her to make more of their kind.

After falling under attack by an unidentified ship, the crew of the Enterprise works frantically to get the new phase cannons on line.

Tony gets busted while delivering the drugs but keeps quiet to protect his mother, while the Rangers have two suspects in the rape cases.

Reno crosses paths with a man who stalks young runaways, and supposedly drains them of their blood; Bobby believes vampires are real and suggests a vampire kit.

A man is arrested for robbery, and he asks Jack to bail him out, she enlists Colt to keep an eye on him but he's injuries and gets Howie to do it instead.

Nash and Joe escort a key witness who has joined the Witness Protection Program to San Fran and realize there is a leak in the prosecution team.

Walker's troubled mindset over the near-death of a youth is interrupted when another teenager needs his assistance after stealing heroin.